揭秘太阳的“雀斑”——黑子
<p>古人认为它们是太阳神脸上生的麻子，抑或太阳内的星辰，现代人猜想它们和<span word="UFO">UFO</span>以及各种超自然现象密不可分——这种神秘物质就是太阳黑子，它们能量巨大，也会时不时给人类的生活带来麻烦，让我们随本文一起揭开太阳黑子的面纱吧。</p><p><span word="The">The</span> <span word="Aztecs">Aztecs</span> <span word="thought">thought</span> <span word="that">that</span> <span word="their">their</span> <span word="sun">sun</span> <span word="god">god</span> <span word="had">had</span> <span word="pockmarks">pockmarks</span> <span word="on">on</span> <span word="his">his</span> <span word="face">face</span>. <span word="The">The</span> <span word="ancient">ancient</span> <span word="Chinese">Chinese</span> <span word="referred">referred</span> <span word="to">to</span> <span word="them">them</span> <span word="as">as</span> <span word="stars">stars</span> <span word="inside">inside</span> <span word="the">the</span> <span word="solar">solar</span> <span word="orb">orb</span>. <span word="One">One</span> <span word="Renaissance">Renaissance</span> <span word="astronomer">astronomer</span> <span word="argued">argued</span> <span word="that">that</span> <span word="they">they</span> <span word="were">were</span> <span word="actually">actually</span> <span word="undiscovered">undiscovered</span> <span word="planets">planets</span>. <span word="Today">Today</span>, <span word="some">some</span> <span word="believe">believe</span> <span word="their">their</span> <span word="appearance">appearance</span> <span word="is">is</span> <span word="linked">linked</span> <span word="to">to</span> <span word="UFO">UFO</span> <span word="sightings">sightings</span> <span word="and">and</span> <span word="paranormal">paranormal</span> <span word="activity">activity</span>. <span word="Others">Others</span> <span word="offer">offer</span> <span word="them">them</span> <span word="as">as</span> <span word="an">an</span> <span word="alternative">alternative</span> <span word="explanation">explanation</span> <span word="for">for</span> <span word="human">human</span>-<span word="caused">caused</span> <span word="climate">climate</span> <span word="change">change</span>. <span word="The">The</span> <span word="rest">rest</span> <span word="of">of</span> <span word="us">us</span> <span word="wonder">wonder</span> <span word="if">if</span> <span word="they">they</span>’<span word="re">re</span> <span word="the">the</span> <span word="reason">reason</span> <span word="for">for</span> <span word="dropped">dropped</span> <span word="cell">cell</span> <span word="phone">phone</span> <span word="calls">calls</span> <span word="or">or</span> <span word="static">static</span>-<span word="plagued">plagued</span> <span word="radio">radio</span> <span word="stations">stations</span>.</p><p><span word="We">We</span>’<span word="re">re</span> <span word="talking">talking</span> <span word="about">about</span> <span word="sunspots">sunspots</span>, <span word="those">those</span> <span word="peculiar">peculiar</span> <span word="dark">dark</span> <span word="areas">areas</span> <span word="that">that</span> <span word="pop">pop</span> <span word="up">up</span> <span word="regularly">regularly</span> <span word="on">on</span> <span word="the">the</span> <span word="surface">surface</span> <span word="of">of</span> <span word="the">the</span> <span word="sun">sun</span>. <span word="They">They</span> <span word="usually">usually</span> <span word="appear">appear</span> <span word="in">in</span> <span word="pairs">pairs</span> <span word="or">or</span> <span word="in">in</span> <span word="groups">groups</span> <span word="on">on</span> <span word="either">either</span> <span word="side">side</span> <span word="of">of</span> <span word="the">the</span> <span word="sun">sun</span>’<span word="s">s</span> <span word="equator">equator</span>. <span word="Sunspots">Sunspots</span> <span word="vary">vary</span> <span word="tremendously">tremendously</span> <span word="in">in</span> <span word="size">size</span>, <span word="ranging">ranging</span> <span word="from">from</span> <span word="less">less</span> <span word="than">than</span> 200 <span word="miles">miles</span> <span word="across">across</span> <span word="to">to</span> <span word="many">many</span> <span word="times">times</span> <span word="the">the</span> <span word="size">size</span> <span word="of">of</span> <span word="the">the</span> <span word="Earth">Earth</span>. <span word="Some">Some</span> <span word="small">small</span> <span word="sunspots">sunspots</span> <span word="may">may</span> <span word="last">last</span> <span word="for">for</span> <span word="less">less</span> <span word="than">than</span> <span word="an">an</span> <span word="hour">hour</span>, <span word="but">but</span> <span word="larger">larger</span> <span word="ones">ones</span> <span word="can">can</span> <span word="last">last</span> <span word="up">up</span> <span word="to">to</span> <span word="six">six</span> <span word="months">months</span>. <span word="Some">Some</span> <span word="sunspots">sunspots</span>—<span word="such">such</span> <span word="as">as</span> <span word="one">one</span> <span word="in">in</span> 2004 <span word="that">that</span> <span word="measured">measured</span> 20 <span word="times">times</span> <span word="the">the</span> <span word="size">size</span> <span word="of">of</span> <span word="our">our</span> <span word="planet">planet</span>—<span word="are">are</span> <span word="big">big</span> <span word="enough">enough</span> <span word="to">to</span> <span word="be">be</span> <span word="seen">seen</span> <span word="by">by</span> <span word="the">the</span> <span word="naked">naked</span> <span word="eye">eye</span>.</p><p><span word="Astronomers">Astronomers</span> <span word="in">in</span> <span word="ancient">ancient</span> <span word="China">China</span> <span word="noticed">noticed</span> <span word="sunspots">sunspots</span> <span word="several">several</span> <span word="thousand">thousand</span> <span word="years">years</span> <span word="ago">ago</span>. <span word="The">The</span> <span word="I">I</span>-<span word="Ching">Ching</span> <span word="or">or</span> <span word="Book">Book</span> <span word="of">of</span> <span word="Changes">Changes</span>, <span word="which">which</span> <span word="dates">dates</span> <span word="back">back</span> <span word="to">to</span> <span word="the">the</span> 12<span word="th">th</span> <span word="century">century</span> <span word="B">B</span>.<span word="C">C</span>., <span word="mentions">mentions</span> <span word="the">the</span> <span word="phenomenon">phenomenon</span>. <span word="The">The</span> <span word="first">first</span> <span word="written">written</span> <span word="record">record</span> <span word="of">of</span> <span word="a">a</span> <span word="sunspot">sunspot</span> <span word="sighting">sighting</span> <span word="dates">dates</span> <span word="to">to</span> 28 <span word="B">B</span>.<span word="C">C</span>., <span word="when">when</span> <span word="it">it</span> <span word="was">was</span> <span word="noted">noted</span> <span word="that">that</span> “<span word="the">the</span> <span word="sun">sun</span> <span word="was">was</span> <span word="yellow">yellow</span> <span word="at">at</span> <span word="its">its</span> <span word="rising">rising</span> <span word="and">and</span> <span word="a">a</span> <span word="black">black</span> <span word="vapor">vapor</span> <span word="as">as</span> <span word="large">large</span> <span word="as">as</span> <span word="a">a</span> <span word="coin">coin</span> <span word="was">was</span> <span word="observed">observed</span> <span word="at">at</span> <span word="its">its</span> <span word="center">center</span>.” <span word="On">On</span> <span word="the">the</span> <span word="other">other</span> <span word="side">side</span> <span word="of">of</span> <span word="the">the</span> <span word="world">world</span>, <span word="the">the</span> <span word="Aztecs">Aztecs</span>, <span word="who">who</span> <span word="ruled">ruled</span> <span word="Mexico">Mexico</span> <span word="before">before</span> <span word="the">the</span> <span word="Spanish">Spanish</span> <span word="arrived">arrived</span> <span word="in">in</span> <span word="the">the</span> 1500<span word="s">s</span>, <span word="also">also</span> <span word="paid">paid</span> <span word="a">a</span> <span word="lot">lot</span> <span word="of">of</span> <span word="attention">attention</span> <span word="to">to</span> <span word="the">the</span> <span word="sun">sun</span>. <span word="As">As</span> <span word="we">we</span> <span word="discussed">discussed</span>, <span word="their">their</span> <span word="creation">creation</span> <span word="myth">myth</span> <span word="featured">featured</span> <span word="a">a</span> <span word="sun">sun</span> <span word="god">god</span> <span word="with">with</span> <span word="a">a</span> <span word="pockmarked">pockmarked</span> <span word="face">face</span>.</p>
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